Neuroleptic malignant syndrome is best described as which of the following?

• A. Common minor reaction
• B. A skin rash
• C. Rare, life-threatening reaction to a neuroleptic medication
• D. Mild sedation

Answer: (C)

Neuroleptic malignant syndrome is a rare but potentially fatal reaction to neuroleptic (antipsychotic) medications. It occurs when dopamine signaling is suddenly disrupted and shows up with a high fever, severe muscle rigidity (often described as lead-pipe rigidity), autonomic instability (like irregular heart rate and blood pressure), and altered mental status, along with very elevated muscle enzymes such as creatine kinase. Because it can progress rapidly to life-threatening complications if not treated promptly, it’s described as a rare, life-threatening reaction. This is not a common minor reaction, not a skin rash, and not mild sedation—those are typical of more common or milder drug effects. The onset is usually within days to weeks after starting or increasing the antipsychotic, which also helps distinguish it from other drug reactions.